Home / 681,826.44-940,711.98-395,289.36

Finding the Fourth Proportional to 681,826.44, 940,711.98 and 395,289.36

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Solution

The fourth proportional to 681,826.44, 940,711.98 and 395,289.36 is: 545,378.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,826.44 : 940,711.98 = 395,289.36 : x
  2. Step 2: Convert to fraction form
    681,826.44/940,711.98 = 395,289.36/x
  3. Step 3: Cross multiply
    681,826.44x = 940,711.98 × 395,289.36
  4. Step 4: Simplify right side
    681,826.44x = 371,853,436,518.53
  5. Step 5: Solve for x
    x = 371,853,436,518.53/681,826.44
  6. Step 6: Final answer
    x = 545,378.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.